Invention Grant
- Patent Title: Implicit signalling in OFDM preamble with embedded signature sequence, and cyclic prefix and postfix aided signature detection
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Application No.: US16508124Application Date: 2019-07-10
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Publication No.: US10999111B2Publication Date: 2021-05-04
- Inventor: Samuel Asangbeng Atungsiri
- Applicant: Saturn Licensing LLC
- Applicant Address: US NY New York
- Assignee: Saturn Licensing LLC
- Current Assignee: Saturn Licensing LLC
- Current Assignee Address: US NY New York
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: H04L27/26
- IPC: H04L27/26

Abstract:
A transmitter transmitting payload data using Orthogonal Frequency Division Multiplexed (OFDM) symbols, including: a frame builder configured to receive the payload data and to receive signalling data to use in detecting and recovering the payload data at a receiver, and to form the payload data with the signalling data into frames for transmission; a modulator configured to modulate a first OFDM symbol with the signalling data and to modulate one or more second OFDM symbols with the payload data; a signature sequence processor circuit providing a signature sequence; a combiner circuit combining the signature sequence with the first OFDM symbol; a prefixing circuit to prefixing a guard interval to the first OFDM symbol to form a preamble; and a transmission circuit transmitting the preamble and the one or more second OFDM symbols. The guard interval is formed from time domain samples of a part of the signature sequence.
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